

package com.hazelcast.map.impl;

import com.hazelcast.core.EntryView;
import com.hazelcast.internal.serialization.Data;
import com.hazelcast.internal.serialization.SerializationService;
import com.hazelcast.map.impl.record.Record;
import com.hazelcast.map.impl.recordstore.expiry.ExpiryMetadata;
import com.hazelcast.map.impl.wan.WanMapEntryView;

/**
 * A class providing static factory methods that create various entry view objects.
 */
public final class EntryViews {

    private EntryViews() {
    }

    public static <K, V> EntryView<K, V> createSimpleEntryView() {
        return new SimpleEntryView<>();
    }

    public static <K, V> EntryView<K, V> createSimpleEntryView(K key, V value, Record<V> record, ExpiryMetadata expiryMetadata) {
        return new SimpleEntryView<>(key, value).withCost(record.getCost()).withVersion(record.getVersion()).withHits(record.getHits()).withLastAccessTime(record.getLastAccessTime()).withLastUpdateTime(calculateLastUpdateTime(record, expiryMetadata)).withCreationTime(record.getCreationTime()).withLastStoredTime(record.getLastStoredTime()).withTtl(expiryMetadata.getTtl()).withMaxIdle(expiryMetadata.getMaxIdle()).withExpirationTime(expiryMetadata.getExpirationTime());
    }

    public static <K, V> WanMapEntryView<K, V> createWanEntryView(Data key, Data value, Record<V> record, ExpiryMetadata expiryMetadata, SerializationService serializationService) {
        return new WanMapEntryView<K, V>(key, value, serializationService).withCost(record.getCost()).withVersion(record.getVersion()).withHits(record.getHits()).withLastAccessTime(record.getLastAccessTime()).withLastUpdateTime(calculateLastUpdateTime(record, expiryMetadata)).withCreationTime(record.getCreationTime()).withLastStoredTime(record.getLastStoredTime()).withTtl(expiryMetadata.getTtl()).withMaxIdle(expiryMetadata.getMaxIdle()).withExpirationTime(expiryMetadata.getExpirationTime());
    }

    private static <V> long calculateLastUpdateTime(Record<V> record, ExpiryMetadata expiryMetadata) {
        if (record.getLastUpdateTime() != Record.UNSET) {
            return record.getLastUpdateTime();
        }

        if (expiryMetadata != ExpiryMetadata.NULL) {
            return expiryMetadata.getLastUpdateTime();
        }

        return Record.UNSET;
    }
}
